*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* ── THEMES ───────────────────────────────────────────────────── */
:root{
  --bg:#1e1e2e;--surface:#13131f;--surface2:#2d2d42;--surface3:#3a3a55;
  --border:#2d2d42;--border2:#45475a;--border3:#585b70;
  --text:#cdd6f4;--text2:#a6adc8;--text3:#6c7086;
  --accent:#cba6f7;--accent2:#b4befe;--danger:#f38ba8;
  --act-w:80px;--drawer-w:272px;
  --shadow:0 8px 32px rgba(0,0,0,.55);
  --font:'DM Sans',system-ui,sans-serif;--mono:'DM Mono',monospace;
}
:root[data-theme="slate"]{
  --bg:#f0f2f5;--surface:#fff;--surface2:#f0f2f5;--surface3:#e4e7ec;
  --border:#dde1e8;--border2:#c8cdd6;--border3:#a0a8b8;
  --text:#1a202c;--text2:#4b5563;--text3:#9ba3af;
  --accent:#2563eb;--accent2:#3b82f6;--danger:#dc2626;
}
:root[data-theme="warm"]{
  --bg:#f7f3ec;--surface:#eee8dd;--surface2:#f7f3ec;--surface3:#e8e0d4;
  --border:#d8cfc2;--border2:#c8bfb2;--border3:#a89880;
  --text:#2c1f14;--text2:#5c4a38;--text3:#a89880;
  --accent:#b45309;--accent2:#d97706;--danger:#dc2626;
}
:root[data-theme="hero"]{
  --bg:#060d1a;--surface:#0a1220;--surface2:#0f1e35;--surface3:#162540;
  --border:#1a2d45;--border2:#f97316;--border3:#fb923c;
  --text:#fff;--text2:#e2e8f0;--text3:#64748b;
  --accent:#f97316;--accent2:#fb923c;--danger:#f87171;
}

html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:var(--font)}

/* ── LOGIN ─────────────────────────────────────────────────────── */
#login-screen{position:fixed;inset:0;background:var(--bg);display:flex;align-items:center;justify-content:center;z-index:1000}
#login-box{background:var(--surface);border:1px solid var(--border2);border-radius:16px;padding:40px 36px;width:320px;text-align:center;box-shadow:var(--shadow)}
.login-logo{width:52px;height:52px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;color:#fff;margin:0 auto 16px}
.login-title{font-size:22px;font-weight:600;margin-bottom:6px}
.login-sub{font-size:13px;color:var(--text3);margin-bottom:28px}
#btn-google-login{width:100%;padding:11px 16px;background:var(--surface2);border:1px solid var(--border2);border-radius:9px;color:var(--text);font-size:13px;font-weight:500;cursor:pointer;font-family:var(--font);display:flex;align-items:center;justify-content:center;gap:10px;transition:all .15s}
#btn-google-login:hover{background:var(--surface3);border-color:var(--border3)}
.login-note{font-size:11px;color:var(--text3);margin-top:16px}

/* ── LAYOUT ─────────────────────────────────────────────────────── */
#app{display:flex;height:100vh;width:100vw}
#sidebar{display:flex;flex-direction:row;flex-shrink:0}

/* ── ACTIVITY BAR ─────────────────────────────────────────────── */
#act-bar{width:var(--act-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;padding:8px 0;z-index:100;user-select:none;flex-shrink:0}
[data-theme="hero"] #act-bar{border-right:3px solid var(--accent)}
#act-logo{display:flex;align-items:center;justify-content:center;width:100%;padding:6px 0 10px;border-bottom:1px solid var(--border);margin-bottom:6px;flex-shrink:0}
.lm{width:32px;height:32px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff}
#act-top{display:flex;flex-direction:column;align-items:center;gap:2px;flex:1;width:100%;overflow-y:auto;overflow-x:hidden}
#act-top::-webkit-scrollbar{display:none}
#act-bottom{display:flex;flex-direction:column;align-items:center;gap:2px;padding-bottom:4px;width:100%}
.act-divider{width:60%;height:1px;background:var(--border);margin:4px auto;flex-shrink:0}
.act-btn{width:100%;display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 4px;border-radius:0;cursor:pointer;border:none;background:transparent;color:var(--text3);transition:background .15s,color .15s;font-family:var(--font)}
.act-btn:hover{background:var(--surface2);color:var(--text2)}
.act-btn.act-active{color:var(--accent);background:rgba(203,166,247,.14)}
[data-theme="hero"] .act-btn.act-active{background:rgba(249,115,22,.16);color:#f97316}
[data-theme="slate"] .act-btn.act-active{background:rgba(37,99,235,.10);color:#2563eb}
[data-theme="warm"] .act-btn.act-active{background:rgba(180,83,9,.10);color:#b45309}
.act-btn svg{width:18px;height:18px;flex-shrink:0}
.act-lbl{font-size:9px;font-weight:600;letter-spacing:.3px;text-align:center;line-height:1.1;color:inherit;display:block;width:100%}
#act-user{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 0 2px;width:100%}
#user-avatar{width:26px;height:26px;border-radius:50%;background:var(--surface2);border:1px solid var(--border2);overflow:hidden}
#user-avatar img{width:100%;height:100%;object-fit:cover}
#btn-logout{background:none;border:none;color:var(--text3);cursor:pointer;padding:4px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:color .12s,background .12s}
#btn-logout:hover{color:var(--danger);background:rgba(226,75,74,.1)}
#btn-logout svg{width:16px;height:16px}

/* ── DRAWER ───────────────────────────────────────────────────── */
#drawer{width:var(--drawer-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100;user-select:none;flex-shrink:0;position:relative;transition:width .2s cubic-bezier(.4,0,.2,1);overflow:hidden}
[data-theme="hero"] #drawer{border-right:1px solid var(--accent)}
#drawer.collapsed{width:0;border-right:none}
#drawer-toggle{
  position:fixed;top:50%;
  z-index:102;width:13px;height:36px;
  background:var(--surface);border:1px solid var(--border);border-left:none;
  border-radius:0 5px 5px 0;cursor:pointer;color:var(--text3);
  display:flex;align-items:center;justify-content:center;padding:0;
  transition:color .12s,background .12s,left .2s cubic-bezier(.4,0,.2,1);
  transform:translateY(-50%);
}
#drawer-toggle:hover{color:var(--accent);background:var(--surface2)}
#drawer-toggle svg{width:8px;height:8px;transition:transform .2s;flex-shrink:0}
#drawer.collapsed #drawer-toggle svg{transform:rotate(180deg)}
[data-theme="hero"] #drawer-toggle{border-color:var(--accent)}
#drawer-head{padding:14px 16px 12px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:2px;flex-shrink:0}
#drawer-title{font-size:11px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--text3)}
#user-name{font-size:11px;color:var(--text3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#drawer-search-wrap{padding:8px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;color:var(--text3);flex-shrink:0}
#search{flex:1;background:transparent;border:none;outline:none;font-size:12px;color:var(--text);font-family:var(--font)}
#search::placeholder{color:var(--text3)}
#pal{flex:1;overflow-y:auto;padding:8px 0}
#pal::-webkit-scrollbar{width:3px}
#pal::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}
.ch{padding:5px 16px;font-size:10px;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:1.2px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.ch:hover{color:var(--text2)}
.ca{font-size:9px;transition:transform .2s}
.ch.col .ca{transform:rotate(-90deg)}
.ci{padding:0 10px 6px;display:flex;flex-direction:column;gap:3px}
.ci.hide{display:none}
.pn{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:8px;cursor:grab;transition:all .12s}
.pn:hover{background:var(--surface2)}
.pn:active{cursor:grabbing}
.pi{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}
.pi svg{width:14px;height:14px;stroke:currentColor}
.pl{font-size:12px;font-weight:500;color:var(--text)}
.pd{font-size:10px;color:var(--text3);margin-top:1px}
.pin-btn{background:none;border:none;cursor:pointer;padding:2px 3px;border-radius:4px;opacity:0;transition:opacity .15s;flex-shrink:0;display:flex;align-items:center}
.pn:hover .pin-btn{opacity:.4}
.pin-btn:hover{opacity:1!important;background:var(--surface3)}
.pin-btn.pinned{opacity:.9!important}

/* ── SETTINGS PANEL ──────────────────────────────────────────── */
#settings-panel{flex:1;overflow-y:auto;padding:10px 12px;flex-direction:column;gap:3px}
.sp-section{font-size:9px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--text3);padding:6px 4px 3px;margin-top:2px}
.sp-btn{width:100%;display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:8px;border:none;background:transparent;color:var(--text2);cursor:pointer;font-size:12px;font-weight:500;font-family:var(--font);transition:all .12s;text-align:left}
.sp-btn:hover{background:var(--surface2);color:var(--text)}
.sp-btn svg{width:15px;height:15px;flex-shrink:0;stroke:currentColor;opacity:.7}
.sp-danger{color:var(--danger)!important}
.sp-danger:hover{background:rgba(226,75,74,.08)!important}
.sp-theme{color:var(--text3)}
.sp-theme-active{color:var(--accent)!important;background:var(--surface2)}
[data-theme="hero"] .sp-theme-active{color:var(--accent)!important}
.sp-theme-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;display:inline-block}

/* ── DRAWER FOOTER ───────────────────────────────────────────── */
#drawer-footer{padding:12px 16px;border-top:1px solid var(--border);flex-shrink:0}
.sts{display:flex;gap:6px;margin-bottom:8px}
.st{flex:1;background:var(--surface2);border:1px solid var(--border);border-radius:7px;padding:5px 7px;text-align:center}
.sv{font-size:15px;font-weight:600;font-family:var(--mono)}
.sl{font-size:9px;color:var(--text3);text-transform:uppercase;letter-spacing:.8px}
#canvas-name-row{padding-top:4px}
#canvas-name{font-size:11px;color:var(--text3);font-family:var(--mono);cursor:pointer}
#canvas-name:hover{color:var(--text2)}



/* ── CANVAS LIST PANEL ────────────────────────────────────────── */
#cl-panel{position:fixed;left:0;top:0;bottom:0;width:260px;background:var(--surface);border-right:1px solid var(--border);z-index:400;transition:transform .22s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;box-shadow:4px 0 24px rgba(0,0,0,.4)}
#cl-head{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
#cl-head span{flex:1}
#cl-new{background:var(--surface2);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-size:11px;color:var(--text2);cursor:pointer;font-family:var(--font)}
#cl-new:hover{border-color:var(--accent);color:var(--accent)}
#cl-close{background:none;border:none;color:var(--text3);cursor:pointer;font-size:14px;padding:2px 4px}
#cl-list{flex:1;overflow-y:auto;padding:6px}
.cl-item{padding:9px 11px;border-radius:8px;cursor:pointer;border:1px solid transparent;margin-bottom:3px}
.cl-item:hover{background:var(--surface2);border-color:var(--border)}
.cl-item.active{background:var(--surface2);border-color:var(--accent)}
.cl-item-name{font-size:13px;font-weight:500;color:var(--text)}
.cl-item-meta{font-size:10px;color:var(--text3);margin-top:3px;font-family:var(--mono)}
.cl-item-del{float:right;background:none;border:none;color:var(--text3);cursor:pointer;font-size:12px;opacity:0}
.cl-item:hover .cl-item-del{opacity:1}
.cl-item-del:hover{color:var(--danger)}

/* Theme menu (stub - kept for JS compat) */
#theme-menu{display:none}

/* CANVAS */
#cw{flex:1;position:relative;overflow:hidden}
.cbg{position:absolute;inset:0;background-color:var(--bg);background-image:radial-gradient(circle,rgba(255,255,255,.04) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
#world{position:absolute;top:0;left:0;transform-origin:0 0}
#sw{position:absolute;top:0;left:0;overflow:visible;pointer-events:none}
#sw.cm{pointer-events:all}
#nw{position:absolute;top:0;left:0}

/* TOOLBAR */
#tb{position:absolute;top:12px;left:50%;transform:translateX(-50%);background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:5px;display:flex;gap:3px;z-index:200;box-shadow:var(--shadow)}
.tbb{width:32px;height:32px;border-radius:7px;border:none;background:transparent;color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:13px;transition:all .12s}
.tbb:hover{background:var(--surface2);color:var(--text)}
.tbb.on{background:var(--accent);color:#fff}
.tbz{font-size:11px;font-family:var(--mono);color:var(--text2);padding:0 6px;display:flex;align-items:center;min-width:44px;justify-content:center}
.tbs{width:1px;background:var(--border);margin:3px 2px}

/* NODES */
.gn{position:absolute;background:var(--surface);border:1.5px solid var(--border2);border-radius:12px;min-width:186px;width:220px;box-shadow:0 3px 16px rgba(0,0,0,.4);transition:border-color .15s,box-shadow .15s;user-select:none}
[data-theme="hero"] .gn{box-shadow:0 4px 20px rgba(249,115,22,.18),0 2px 8px rgba(0,0,0,.6)}
[data-theme="hero"] .gn:hover{box-shadow:0 6px 28px rgba(249,115,22,.32),0 3px 12px rgba(0,0,0,.6)}
[data-theme="hero"] .gn.sel{border-color:var(--accent)!important;box-shadow:0 0 0 3px rgba(249,115,22,.25),0 6px 32px rgba(249,115,22,.4)!important}
.gn:hover{border-color:var(--border3)}
.gn.sel{border-color:var(--accent)!important;box-shadow:0 0 0 3px rgba(79,124,255,.18),0 3px 20px rgba(0,0,0,.5)}
.nh{padding:9px 10px 7px;display:flex;align-items:flex-start;gap:8px;cursor:move;border-radius:10px 10px 0 0}
.ni2{width:30px;height:30px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;margin-top:1px}.ni2 svg{width:15px;height:15px;stroke:currentColor}
.nt{flex:1;min-width:0}
.ntp{font-size:9px;text-transform:uppercase;letter-spacing:1px;font-weight:600;margin-bottom:2px}
.nlb{font-size:13px;font-weight:500;color:var(--text);line-height:1.3;word-break:break-word}
.nas{display:flex;gap:2px;opacity:0;transition:opacity .15s}
.gn:hover .nas{opacity:1}
.na{width:20px;height:20px;border-radius:5px;background:transparent;border:none;color:var(--text3);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:11px}
.na:hover{background:var(--surface3);color:var(--text)}
.nb{padding:2px 10px 8px}
.ntg{display:inline-block;background:var(--surface2);border:1px solid var(--border);border-radius:4px;padding:1px 6px;font-size:10px;color:var(--text2);margin:1px 2px 1px 0}
.nfl{font-size:11px;color:var(--text2);padding:3px 0;border-top:1px solid var(--border);display:flex;align-items:center;gap:5px;margin-top:2px}
.nfl:first-child{border-top:none;margin-top:0}
.fd{width:5px;height:5px;border-radius:50%;flex-shrink:0}

/* PORTS */
.port{position:absolute;width:13px;height:13px;border-radius:50%;background:var(--surface3);border:2px solid var(--border2);cursor:crosshair;transition:background .12s,border-color .12s,transform .12s;z-index:10}
.port:hover,.port.hot{background:var(--accent);border-color:var(--accent);transform:scale(1.35)}
.ptlbl{position:absolute;font-size:9px;font-family:var(--mono);color:var(--text3);white-space:nowrap;pointer-events:none;background:var(--surface);padding:1px 4px;border-radius:3px;border:1px solid var(--border);z-index:20}

/* EDGES */
.edge{stroke-width:2;fill:none;stroke:#3a4356;marker-end:url(#arr);cursor:pointer;pointer-events:stroke;transition:stroke .12s,stroke-width .12s}
.edge:hover{stroke:#4f7cff;stroke-width:3;marker-end:url(#arr-a)}
.edge.se{stroke:var(--accent);stroke-width:2.5;marker-end:url(#arr-a)}
.etmp{stroke:var(--accent);stroke-width:2;fill:none;stroke-dasharray:6 4;animation:da .7s linear infinite;pointer-events:none}
@keyframes da{to{stroke-dashoffset:-20}}

/* DROP HINT */
#dh{position:absolute;inset:0;border:2px dashed var(--accent);background:rgba(79,124,255,.05);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--accent);pointer-events:none;opacity:0;transition:opacity .2s;z-index:50}
#dh.show{opacity:1}

/* INSPECTOR */
#ins{position:absolute;right:0;top:0;bottom:0;width:280px;background:var(--surface);border-left:1px solid var(--border);z-index:150;transform:translateX(100%);transition:transform .22s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;overscroll-behavior:contain}
#ins.open{transform:translateX(0)}
#inh{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:9px}
#ini{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0}
#int{flex:1}
#intp{font-size:9px;text-transform:uppercase;letter-spacing:1px;font-weight:600;margin-bottom:2px}
#innm{font-size:14px;font-weight:500;color:var(--text)}
#inc{background:none;border:none;color:var(--text3);cursor:pointer;font-size:15px;padding:4px}
#inc:hover{color:var(--text)}
#inb{flex:1;overflow-y:auto;padding:12px;overscroll-behavior:contain}
#inb::-webkit-scrollbar{width:3px}
#inb::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}
.is{margin-bottom:14px}
.ist{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--text3);font-weight:600;margin-bottom:7px;display:flex;align-items:center;justify-content:space-between}
.isb{background:var(--surface2);border:1px solid var(--border);border-radius:5px;padding:2px 8px;font-size:10px;color:var(--text2);cursor:pointer;font-family:var(--font)}
.isb:hover{border-color:var(--border2);color:var(--text)}
.ifd{margin-bottom:7px}
.il{font-size:11px;color:var(--text2);margin-bottom:3px;display:flex;justify-content:space-between;align-items:center}
.ii{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:7px;padding:6px 9px;font-size:12px;color:var(--text);font-family:var(--font);outline:none}
.ii:focus{border-color:var(--accent)}
.ii-select{appearance:none;cursor:pointer}
.ita{resize:vertical;min-height:56px;line-height:1.5}
.ibg{display:flex;flex-wrap:wrap;gap:4px;margin-top:3px}
.ibd{background:var(--surface2);border:1px solid var(--border);border-radius:5px;padding:2px 8px;font-size:11px;color:var(--text2)}
.icn{display:flex;flex-wrap:wrap;gap:4px}
.ib2{width:30px;height:30px;background:var(--surface2);border:1px solid var(--border);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:15px;cursor:pointer}
.ib2.on{border-color:var(--accent);background:rgba(79,124,255,.12)}
.pr{display:flex;align-items:center;gap:6px;margin-bottom:4px;background:var(--surface2);border:1px solid var(--border);border-radius:7px;padding:5px 8px}
.pr input{flex:1;background:transparent;border:none;font-size:12px;color:var(--text);font-family:var(--font);outline:none}
.prs{font-size:10px;font-family:var(--mono);flex-shrink:0}
.prd{background:none;border:none;color:var(--text3);cursor:pointer;font-size:12px;padding:0 2px}
.prd:hover{color:var(--danger)}
.iconn{background:var(--surface2);border:1px solid var(--border);border-radius:7px;padding:6px 9px;margin-bottom:4px;font-size:11px;color:var(--text2)}
.delbtn{width:100%;padding:8px;background:rgba(226,75,74,.1);border:1px solid rgba(226,75,74,.2);border-radius:7px;color:var(--danger);font-size:12px;font-weight:500;cursor:pointer;font-family:var(--font);transition:all .15s}
.delbtn:hover{background:rgba(226,75,74,.18)}

/* MINIMAP */
#mm{position:absolute;bottom:14px;right:14px;width:154px;height:96px;background:var(--surface);border:1px solid var(--border);border-radius:9px;overflow:hidden;z-index:140}

/* CANVAS LIST */
#cl-panel{position:fixed;left:0;top:0;bottom:0;width:260px;background:var(--surface);border-right:1px solid var(--border);z-index:400;transition:transform .22s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;box-shadow:4px 0 24px rgba(0,0,0,.4)}
#cl-head{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
#cl-head span{flex:1}
#cl-new{background:var(--surface2);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-size:11px;color:var(--text2);cursor:pointer;font-family:var(--font)}
#cl-new:hover{border-color:var(--accent);color:var(--accent)}
#cl-close{background:none;border:none;color:var(--text3);cursor:pointer;font-size:14px;padding:2px 4px}
#cl-list{flex:1;overflow-y:auto;padding:6px}
.cl-item{padding:9px 11px;border-radius:8px;cursor:pointer;border:1px solid transparent;margin-bottom:3px}
.cl-item:hover{background:var(--surface2);border-color:var(--border)}
.cl-item.active{background:var(--surface2);border-color:var(--accent)}
.cl-item-name{font-size:13px;font-weight:500;color:var(--text)}
.cl-item-meta{font-size:10px;color:var(--text3);margin-top:3px;font-family:var(--mono)}
.cl-item-del{float:right;background:none;border:none;color:var(--text3);cursor:pointer;font-size:12px;opacity:0}
.cl-item:hover .cl-item-del{opacity:1}
.cl-item-del:hover{color:var(--danger)}

/* MODALS */
#save-modal,#exp-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:500;opacity:0;pointer-events:none;transition:opacity .18s}
#save-modal.open,#exp-modal.open{opacity:1;pointer-events:all}
#save-box,#exp-box{background:var(--surface);border:1px solid var(--border2);border-radius:12px;padding:20px;width:280px;box-shadow:var(--shadow)}
.modal-btn{flex:1;padding:8px 16px;border-radius:7px;font-size:12px;font-weight:500;cursor:pointer;font-family:var(--font);border:1px solid var(--border2);background:var(--surface2);color:var(--text2);transition:all .12s}
.modal-btn:hover{border-color:var(--border3);color:var(--text)}
.modal-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.modal-btn.primary:hover{background:#3d6ae8}
.exp-options{display:flex;flex-direction:column;gap:6px}
.exp-btn{width:100%;padding:10px 14px;background:var(--surface2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:12px;font-weight:500;cursor:pointer;font-family:var(--font);text-align:left;transition:all .12s}
.exp-btn:hover{border-color:var(--accent);color:var(--accent)}

/* CONTEXT MENU */
#ctx{position:fixed;z-index:1000;background:var(--surface);border:1px solid var(--border2);border-radius:10px;padding:4px;min-width:172px;box-shadow:var(--shadow);display:none}
#ctx.show{display:block}
.cx{padding:6px 11px;border-radius:7px;font-size:12px;color:var(--text2);cursor:pointer;display:flex;align-items:center;gap:7px;white-space:nowrap}
.cx:hover{background:var(--surface2);color:var(--text)}
.cx.dg{color:var(--danger)}.cx.dg:hover{background:rgba(226,75,74,.1)}
.cxs{height:1px;background:var(--border);margin:3px 0}
.cxh{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.9px;padding:5px 11px 2px;cursor:default}

/* TOASTS */
#ts{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;gap:5px;z-index:500;pointer-events:none}
.tst{background:var(--surface);border:1px solid var(--border2);border-radius:8px;padding:8px 14px;font-size:12px;color:var(--text);box-shadow:var(--shadow);animation:ti .25s ease;white-space:nowrap;transition:opacity .3s}
@keyframes ti{from{opacity:0;transform:translateY(6px)}}

/* EMPTY STATE */
#em{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;pointer-events:none;transition:opacity .2s}
#em.h{opacity:0}

/* NODE COLOURS */
.cat-blue{background:rgba(79,124,255,.15);color:#7aa3ff}
.cat-purple{background:rgba(124,92,255,.15);color:#a07cff}
.cat-teal{background:rgba(29,158,117,.15);color:#3dbb8a}
.cat-green{background:rgba(34,197,94,.15);color:#4ade80}
.cat-amber{background:rgba(239,159,39,.15);color:#f5b951}
.cat-violet{background:rgba(139,92,246,.15);color:#a78bfa}
.cat-coral{background:rgba(216,90,48,.15);color:#f07755}
.cat-gray{background:rgba(107,114,128,.15);color:#9ca3af}
.cat-custom{background:rgba(96,165,144,.15);color:#70c4a8}

/* AUTOSAVE INDICATOR */
#autosave-indicator{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);font-size:11px;color:var(--text3);font-family:var(--mono);pointer-events:none;z-index:300;transition:opacity .3s}

/* SEARCH PANEL */
#search-panel{position:fixed;top:60px;left:50%;transform:translateX(-50%);width:360px;background:var(--surface);border:1px solid var(--border2);border-radius:12px;z-index:600;box-shadow:var(--shadow);display:none}
#search-panel.open{display:block}
#search-head{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border)}
#canvas-search-input{flex:1;background:transparent;border:none;font-size:13px;color:var(--text);font-family:var(--font);outline:none}
#canvas-search-input::placeholder{color:var(--text3)}
#search-close{background:none;border:none;color:var(--text3);cursor:pointer;font-size:14px}
#search-results{max-height:300px;overflow-y:auto;padding:6px}
.sr-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer}
.sr-item:hover{background:var(--surface2)}
.sr-icon{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.sr-label{font-size:13px;font-weight:500;color:var(--text)}
.sr-type{font-size:10px;color:var(--text3);font-family:var(--mono);margin-top:1px}

/* TEMPLATES MODAL */
#tmpl-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:500;opacity:0;pointer-events:none;transition:opacity .18s}
#tmpl-modal.open{opacity:1;pointer-events:all}
#tmpl-box{background:var(--surface);border:1px solid var(--border2);border-radius:14px;padding:20px;width:640px;box-shadow:var(--shadow);max-height:80vh;overflow-y:auto}
.tmpl-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:8px}
.tmpl-card{background:var(--surface2);border:1px solid var(--border);border-radius:10px;padding:14px;cursor:pointer;transition:all .15s}
.tmpl-card:hover{border-color:var(--accent);background:var(--surface3)}
.tmpl-icon{font-size:24px;margin-bottom:8px}
.tmpl-name{font-size:13px;font-weight:500;color:var(--text);margin-bottom:4px}
.tmpl-desc{font-size:11px;color:var(--text3);line-height:1.4}

/* VERSION HISTORY PANEL */
#ver-panel{position:fixed;right:0;top:0;bottom:0;width:280px;background:var(--surface);border-left:1px solid var(--border);z-index:400;transform:translateX(100%);transition:transform .22s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}
#ver-panel.open{transform:translateX(0)}
#ver-head{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
#ver-close{background:none;border:none;color:var(--text3);cursor:pointer;font-size:14px}
#ver-list{flex:1;overflow-y:auto;padding:8px}
.ver-item{background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:10px 12px;margin-bottom:6px}
.ver-date{font-size:12px;font-weight:500;color:var(--text)}
.ver-by{font-size:11px;color:var(--text3);margin-top:2px}
.ver-label{font-size:11px;color:var(--accent);margin-top:3px}
.ver-restore{margin-top:8px;background:var(--surface);border:1px solid var(--border2);border-radius:6px;padding:4px 10px;font-size:11px;color:var(--text2);cursor:pointer;font-family:var(--font)}
.ver-restore:hover{border-color:var(--accent);color:var(--accent)}

/* SHARE MODAL */
#share-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:500;opacity:0;pointer-events:none;transition:opacity .18s}
#share-modal.open{opacity:1;pointer-events:all}
#share-box{background:var(--surface);border:1px solid var(--border2);border-radius:12px;padding:20px;width:320px;box-shadow:var(--shadow)}

/* MARQUEE SELECT */
#marquee{display:none;position:absolute;border:1.5px solid var(--accent);background:rgba(79,124,255,.08);border-radius:3px;pointer-events:none;z-index:50}

/* ALIGNMENT PANEL */
#align-panel{position:absolute;top:60px;left:50%;transform:translateX(-50%) translateX(60px);background:var(--surface);border:1px solid var(--border2);border-radius:12px;padding:12px;z-index:300;box-shadow:var(--shadow);display:none;width:200px}
#align-panel.open{display:block}
#align-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
#align-close{background:none;border:none;color:var(--text3);cursor:pointer;font-size:13px}
.align-section-title{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--text3);margin-bottom:6px;font-weight:600}
.align-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.align-btn{background:var(--surface2);border:1px solid var(--border);border-radius:7px;padding:7px 4px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text2);transition:all .12s;gap:2px}
.align-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--surface3)}

/* WAYPOINT NODE — small junction dot style */
.gn[data-type="custom"] .nlb{opacity:.6}

/* WAYPOINT HANDLES — HTML divs in #nw */
.wph:hover{opacity:1!important;transform:scale(1.5);background:#4f7cff!important;border-color:#4f7cff!important;cursor:grab;}
.wph:active{cursor:grabbing;}
.wph{transition:transform .12s,background .12s,opacity .15s;}
/* Edges must respond to pointer events for waypoint click-to-add */
.edge{pointer-events:stroke}

/* PIN BUTTON */
.pin-btn{background:none;border:none;cursor:pointer;font-size:10px;padding:2px 3px;border-radius:4px;opacity:0;transition:opacity .15s,background .12s;flex-shrink:0;line-height:1;display:flex;align-items:center;justify-content:center}
.pn:hover .pin-btn{opacity:.4}
.pin-btn:hover{opacity:1!important;background:var(--surface3)}
.pin-btn.pinned{opacity:.9!important}
.pn{align-items:center}

/* ── STICKY NOTE ───────────────────────────────────────────────── */
.sticky-note{
  position:absolute;width:200px;min-width:120px;min-height:80px;
  background:#2a2636;border:1.5px solid #45475a;border-radius:10px;
  padding:8px 10px 20px 10px;cursor:move;
  transition:border-color .15s,box-shadow .15s;
  box-shadow:0 3px 16px rgba(0,0,0,.4);
  overflow:visible;
}
[data-theme="slate"] .sticky-note{background:#fffde7;border-color:#d4c76a}
[data-theme="warm"] .sticky-note{background:#fef9e7;border-color:#c9a84c}
[data-theme="hero"] .sticky-note{background:#0a1220;border-color:rgba(249,115,22,.5)}
.sticky-note.sel{border-color:var(--accent)!important;box-shadow:0 0 0 3px rgba(203,166,247,.18)}
[data-theme="hero"] .sticky-note.sel{box-shadow:0 0 0 3px rgba(249,115,22,.25)}
.note-ta{
  width:100%;height:100%;min-height:64px;
  background:transparent;border:none;outline:none;
  resize:both;overflow:auto;
  font-size:12px;line-height:1.6;color:var(--text);font-family:var(--font);
  padding:0;display:block;
}
[data-theme="slate"] .note-ta,[data-theme="warm"] .note-ta{color:#2c1f14}
.note-ta::placeholder{color:var(--text3)}
.note-del{
  position:absolute;top:5px;right:6px;background:none;border:none;
  color:var(--text3);cursor:pointer;font-size:11px;opacity:0;
  border-radius:4px;padding:2px 4px;transition:all .12s;line-height:1;
}
.sticky-note:hover .note-del{opacity:1}
.note-del:hover{color:var(--danger);background:rgba(226,75,74,.1)}
.note-resize-hint{
  position:absolute;bottom:3px;right:5px;
  font-size:9px;color:var(--text3);opacity:.4;pointer-events:none;
  font-family:var(--mono);
}

/* ── FRAME / GROUP CONTAINER ────────────────────────────────────── */
.frame-node{
  position:absolute;border:1.5px dashed var(--border2);border-radius:10px;
  background:rgba(255,255,255,.02);cursor:move;min-width:200px;min-height:120px;
  transition:border-color .15s;z-index:0;
}
[data-theme="slate"] .frame-node{background:rgba(0,0,0,.02);border-color:#c8cdd6}
[data-theme="warm"] .frame-node{background:rgba(0,0,0,.02);border-color:#c8bfb2}
[data-theme="hero"] .frame-node{background:rgba(249,115,22,.03);border-color:rgba(249,115,22,.35)}
.frame-node.sel{border-style:solid;border-color:var(--accent)!important}
.frame-header{
  display:flex;align-items:center;gap:8px;padding:7px 10px 6px;
  border-bottom:2px solid currentColor;border-radius:8px 8px 0 0;
  cursor:move;user-select:none;
}
.frame-label{
  font-size:11px;font-weight:700;letter-spacing:.8px;
  text-transform:uppercase;flex:1;
}
.frame-desc{font-size:10px;color:var(--text3);flex:2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.frame-actions{display:flex;gap:2px;opacity:0;transition:opacity .12s;flex-shrink:0}
.frame-node:hover .frame-actions{opacity:1}
.frame-resize{
  position:absolute;bottom:2px;right:2px;width:18px;height:18px;
  cursor:se-resize;opacity:.4;transition:opacity .12s;
}
.frame-node:hover .frame-resize{opacity:.9}
.frame-resize svg{width:10px;height:10px;display:block;margin:4px 0 0 4px}

/* ── AI GRAPH MAPPER ──────────────────────────────────────────── */
.sp-ai{color:var(--accent)!important}
.sp-ai svg{stroke:var(--accent)}
.sp-ai:hover{background:rgba(203,166,247,.08)!important}
[data-theme="hero"] .sp-ai{color:var(--accent)!important}

#ai-modal{
  position:fixed;inset:0;background:rgba(0,0,0,.7);
  display:none;align-items:center;justify-content:center;
  z-index:800;backdrop-filter:blur(4px);
}
#ai-modal.open{display:flex}
#ai-box{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:16px;width:580px;max-width:calc(100vw - 40px);
  max-height:calc(100vh - 80px);display:flex;flex-direction:column;
  box-shadow:0 24px 64px rgba(0,0,0,.7);overflow:hidden;
}
[data-theme="hero"] #ai-box{border-color:var(--accent)}

#ai-header{
  padding:18px 20px 16px;border-bottom:1px solid var(--border);
  display:flex;align-items:flex-start;gap:12px;flex-shrink:0;
}
#ai-title-row{display:flex;align-items:center;gap:12px;flex:1}
#ai-icon{
  width:38px;height:38px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;
}
#ai-icon svg{width:20px;height:20px;stroke:#fff}
#ai-title{font-size:15px;font-weight:700;color:var(--text)}
#ai-subtitle{font-size:11px;color:var(--text3);margin-top:2px}
#ai-close{background:none;border:none;color:var(--text3);cursor:pointer;font-size:16px;padding:4px 6px;border-radius:6px;flex-shrink:0;transition:color .12s,background .12s}
#ai-close:hover{color:var(--text);background:var(--surface2)}

#ai-body{flex:1;overflow-y:auto;padding:20px}

/* Input state */
.ai-label{font-size:12px;font-weight:600;color:var(--text);margin-bottom:4px}
.ai-hint{font-size:11px;color:var(--text3);margin-bottom:10px;line-height:1.5}
#ai-doc-input{
  width:100%;height:200px;background:var(--surface2);
  border:1px solid var(--border2);border-radius:10px;
  color:var(--text);font-family:var(--font);font-size:12px;
  line-height:1.6;padding:12px 14px;outline:none;resize:vertical;
  transition:border-color .15s;
}
#ai-doc-input:focus{border-color:var(--accent)}
#ai-doc-input::placeholder{color:var(--text3);font-size:11px}
#ai-options-row{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.ai-option{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:12px;color:var(--text2)}
.ai-option input[type=checkbox]{width:14px;height:14px;accent-color:var(--accent);cursor:pointer}
#ai-input-footer{display:flex;align-items:center;justify-content:space-between;margin-top:16px}
#ai-char-count{font-size:10px;color:var(--text3);font-family:var(--mono)}
#ai-input-btns{display:flex;gap:8px}
.ai-btn-primary{display:flex;align-items:center;gap:6px;padding:9px 16px;background:var(--accent);border:none;border-radius:8px;color:#fff;font-size:12px;font-weight:600;cursor:pointer;font-family:var(--font);transition:opacity .12s}
.ai-btn-primary:hover{opacity:.88}
.ai-btn-primary:disabled{opacity:.4;cursor:default}
[data-theme="midnight"] .ai-btn-primary,[data-theme="slate"] .ai-btn-primary{color:#1e1e2e}
[data-theme="slate"] .ai-btn-primary{color:#fff}
.ai-btn-secondary{padding:9px 14px;background:var(--surface2);border:1px solid var(--border2);border-radius:8px;color:var(--text2);font-size:12px;cursor:pointer;font-family:var(--font);transition:all .12s}
.ai-btn-secondary:hover{border-color:var(--border3);color:var(--text)}

/* Loading state */
#ai-loading-state{display:flex;flex-direction:column;align-items:center;padding:40px 20px;gap:16px}
#ai-loading-animation{position:relative;width:60px;height:60px;margin-bottom:8px}
.ai-pulse-ring{
  position:absolute;inset:0;border-radius:50%;
  border:2px solid var(--accent);opacity:.3;
  animation:ai-pulse 2s ease-out infinite;
}
.ai-pulse-dot{
  position:absolute;inset:10px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  animation:ai-spin 3s linear infinite;
}
@keyframes ai-pulse{0%{transform:scale(.8);opacity:.5}50%{transform:scale(1.1);opacity:.15}100%{transform:scale(.8);opacity:.5}}
@keyframes ai-spin{0%{filter:hue-rotate(0deg)}100%{filter:hue-rotate(360deg)}}
#ai-loading-text{font-size:14px;font-weight:600;color:var(--text)}
#ai-loading-sub{font-size:12px;color:var(--text3);text-align:center}
#ai-stream-preview{
  width:100%;max-height:120px;overflow-y:auto;
  background:var(--surface2);border-radius:8px;padding:10px 12px;
  font-size:11px;font-family:var(--mono);color:var(--text3);
  line-height:1.6;margin-top:8px;word-break:break-all;
}

/* Result state */
#ai-result-state{display:flex;flex-direction:column;gap:14px}
#ai-result-summary{
  background:linear-gradient(135deg,rgba(203,166,247,.1),rgba(180,190,254,.05));
  border:1px solid rgba(203,166,247,.2);border-radius:10px;
  padding:14px 16px;
}
[data-theme="hero"] #ai-result-summary{
  background:linear-gradient(135deg,rgba(249,115,22,.08),rgba(251,146,60,.04));
  border-color:rgba(249,115,22,.2);
}
#ai-result-summary-title{font-size:13px;font-weight:700;color:var(--accent);margin-bottom:4px}
#ai-result-summary-text{font-size:12px;color:var(--text2);line-height:1.5}
#ai-result-breakdown{display:flex;flex-wrap:wrap;gap:6px}
.ai-result-tag{
  padding:4px 10px;border-radius:20px;
  background:var(--surface2);border:1px solid var(--border2);
  font-size:11px;color:var(--text2);
}
.ai-result-tag-count{font-weight:700;color:var(--accent);margin-right:4px}
#ai-result-footer{display:flex;justify-content:flex-end;gap:8px;padding-top:4px}

/* Error state */
#ai-error-state{display:flex;flex-direction:column;align-items:center;padding:40px 20px;gap:12px;text-align:center}
#ai-error-icon{font-size:32px;opacity:.6}
#ai-error-msg{font-size:13px;color:var(--text2);max-width:300px;line-height:1.5}